Our exploration begins with an honest appraisal of traditional fuzzing methodologies that have been applied to TCP/IP stacks before, like ISIC, revealing their inherent limitations, e.g., they can't reach beyond the TCP initial state. Recognizing the need for a more evolved approach, we take a different approach, where we leverage a full-blow active network connection for fuzzing. A key revelation in this journey is the deliberate decision to sidestep the arduous task of constructing a custom TC...